GE's monster, GEnx turbofan is a marvel of modern tech that completely changed conventional turbofan design. But just because it creates a massive amount of pressure by actually containing burning air and fuel in the combustor itself doesn't mean its not still a labor of love. As you can see in GE's timelapse above, each massive, efficient blade is lovingly installed by hand.
More than that, this video puts the GEnx into awesome perspective—a grown man with arm outstretched barely reaches just past the center. So as you can imagine, these blades could do some serious damage, but hopefully it'll just be air slicing through this man-made monster. [YouTube, GE]